popen() causes an error message to print if perf-read-vdso32
does not run. Avoid that by not trying to run it if it was
not built. Ditto perf-read-vdsox32.
Signed-off-by: Adrian Hunter <adrian.hun...@intel.com>
---
tools/perf/config/Makefile | 8 ++++++--
tools/perf/util/vdso.c | 10 ++++++++++
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 3ba2382..71264e4 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -627,7 +627,9 @@ endif
ifeq (${IS_64_BIT}, 1)
ifndef NO_PERF_READ_VDSO32
$(call feature_check,compile-32)
- ifneq ($(feature-compile-32), 1)
+ ifeq ($(feature-compile-32), 1)
+ CFLAGS += -DHAVE_PERF_READ_VDSO32
+ else
NO_PERF_READ_VDSO32 := 1
endif
endif
@@ -636,7 +638,9 @@ ifeq (${IS_64_BIT}, 1)
endif
ifndef NO_PERF_READ_VDSOX32
$(call feature_check,compile-x32)
- ifneq ($(feature-compile-x32), 1)
+ ifeq ($(feature-compile-x32), 1)
+ CFLAGS += -DHAVE_PERF_READ_VDSOX32
+ else
NO_PERF_READ_VDSOX32 := 1
endif
endif
diff --git a/tools/perf/util/vdso.c b/tools/perf/util/vdso.c
index 69daef6..5c7dd79 100644
--- a/tools/perf/util/vdso.c
+++ b/tools/perf/util/vdso.c
@@ -255,6 +255,16 @@ static int vdso__dso_findnew_compat(struct machine
*machine,
enum dso_type dso_type;
dso_type = machine__thread_dso_type(machine, thread);
+
+#ifndef HAVE_PERF_READ_VDSO32
+ if (dso_type == DSO__TYPE_32BIT)
+ return 0;
+#endif
+#ifndef HAVE_PERF_READ_VDSOX32
+ if (dso_type == DSO__TYPE_X32BIT)
+ return 0;
+#endif
+
switch (dso_type) {
case DSO__TYPE_32BIT:
*dso = vdso__findnew_compat(machine, &vdso_info->vdso32);
--
1.9.1
--
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